英文關鍵字
allergy
away
background
bacteria
blue
breathing
care
close
coronavirus
disease
disposable
epidemic
equipment
face
fall
falls
filter
flu
health
healthcare
healthy
hospital
hygiene
hygienic
ill
illness
infection
influenza
mask
medical
medicine
motion
professional
protect
protection
protective
rubbish
safety
slow
surface
surgical
throw
virus
white
wooden